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Trial sequences for appearance experiment (Experiment 1, Phase 2). (A) Precue trials: Uninformative cue precedes presentation of stimuli. Cue color, cue type and position, and stimulus contrasts, positions, and orientations were fully randomized. (B) Postcue trials: The trial follows stimulus presentation, with reversed temporal spacing relative to the precue trials. Precue and postcue trials were in separate runs of 1,000 trials, with order counterbalanced across observers.
